or descending for that matter?

I know that I should, but I don't. I always attach it to the tree once I arrived at my hunting height and would feel vulnerable without it now. However, I often climb trees with limbs and obstructions most of the way up and don't want to waste time and make additional noise attaching and detaching the strap every few feet.

Am I alone in this, or are others taking this risk?

BTW--I've never fallen.